Document Type and Number:
Japanese Patent JPS56104686
Kind Code:
U
Application Number:
JP18815180U
Publication Date:
August 15, 1981
Filing Date:
December 30, 1980
Export Citation:
International Classes:
F16L13/02; (IPC1-7): F16L13/02
Domestic Patent References:
| JPS4827318A | 1973-04-11 | |||
| JPS4817444A |